class Recolor::Models::RGB
Constants
- MATRIX
Public Instance Methods
hex(tuple)
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# File lib/recolor/models/rgb.rb, line 12 def hex(tuple) hex = tuple.map do |v| v = v * 255 v = v.round v = v.to_s(16) v = v.length == 1 ? "0" + v : v end return hex end
xyz(tuple)
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# File lib/recolor/models/rgb.rb, line 23 def xyz(tuple) rgb = tuple.map do |v| v < 0.04045 ? v / 12.92 : ((v + 0.055) / 1.055)**2.4 end rgb = Matrix[rgb].transpose xyz = XYZ::MATRIX * rgb xyz = xyz.transpose xyz = xyz.row(0) xyz = xyz.to_a return xyz end